Average speed = (total distance covered) / (time to cover the distance)
-- Traveling at 40 mph for 1 hour, the distance covered is 40 miles.
-- Traveling at 60 mph for 1 hour, the distance covered is 60 miles.
-- Total distance covered = (40 miles) + (60 miles) = 100 miles
-- Total time = (1 hour) + (1 hour) = 2 hours
-- Average speed = (100 miles) / (2 hours)
<em>Average speed = 50 miles per hour</em>
The intensity of sound is just like the force of gravity, the force between electric charges, and the intensity of light . . . they all DEcrease at the same rate that the SQUARE of the distance INcreases.
So if two people are watching or listening to the same source, and one intensity is 1/10 as intense as the other intensity, then the farther person must be √10 times as far from the source as the nearer person is.
√10 = 3.1622 ...
So the second guy is about <em>3.16 miles</em> from the fire truck.
Control group in a scientific experiment is a group separated from the rest of the experiment, it is where the independent variable being tested cannot influence the results. It isolates the independent variable's effects on the experiment and can helps rule out alternative explanations of the experimental results.
GPE= height x mass x gravitational field strength
5 x 10 x 9,8=490J
The given statement "There is a set table of rate constants for the rate equation" is true.
Answer: Option A
<u>Explanation:</u>
The rate equation definitely has the need of set of table of rate constants. Rate constants are those which, in a reaction, describe whether it is fast, slow or moderate. And, if a set of rate constants is not available, one may take slow processes and have to wait a long time to predict the results.
And, if the reactions are fast, there is a chance of damage occurring to the surroundings. And since it is a constant, it is easier to determine the products of an intermediate steps, in a chemical reaction too.
